The particle has been the subject of a 45-year hunt to explain how matter attains its mass.
Both of the Higgs boson-hunting experiments at the LHC see a level of certainty in their data worthy of a “discovery”.
More work will be needed to be certain that what they see is a Higgs, however.
Prof Stephen Hawking tells the BBC’s Pallab Ghosh the discovery has cost him $100
The results announced at Cern (European Organization for Nuclear Research), home of the LHC in Geneva, were met with loud applause and cheering.